bebger



J. BERGER, JR.

SEWING MACHINE. APPLICATION FILED NOV. 1|. 191s.

Reissued Ma1z9, 1920. 14,814.

"7 SHE'ETS-SHEET l- 'J. BERGER, In.

SEWtNG MACHINE: APPLICATION FILED NOV- 1.1 1.9]9- I Rissued Man-9, 1920. 14,814,

I SHEETS-SHEET 3.

1. BERGEEJp/f SEWING MACHINE.

APPLICAIIDR FILED NOV. 1 l 9l9 I I Rvissmwi Man. 9, 1920.

J. BERGER, JR.

SEWING MACHINE. APPucATlfiu FILED NOV. 11, 1919.

14,814. I SHEETS-SHEET 6.

Reissued Mar. 9, 1920.

- STATE Joann users, :1, or lines, unw

iron]; ss smnon TO PATENT OFFICE, j

UNION SPECIAL MACHINE 1 0101mm, 01: CHICAGO, ILLINOIS. A.,COBPOBATION OF ILLINOIS.

- snwmd-uscnnm.

To all whom it may concem Be it known that I, Josern BERGER, J12, a citizen of the United States, residing at Utica, in the county of Oneida New York, have invented certain new and useful Imgrovements in Sewing-Machines,

of which t e following is e, description, reference being had to the accompanying drawlngs, and to the figures of reference marked thereon.

The invention relates to new and useful improvements in sewing machines, and more particularly to a sewing machine for unitingand covering the edges of fabric sections. An object of theinvention' is to provide a sewing machine of the above wherein the edge portions of the fabric secered by astitching mechanism having three needles, and upper and lower cooperating mechanisms, and wherein the edge portions are trimmed in advance of the stitching thereof by a meclian'sm dis osed so that the trimmed edge port ons of the fabric sections will overla thereof terminating between and adjacent the outer needles of the stitching mechanism and wherein the are stitched together by the center needle.

Another object of the invention is to )I'()- vide a sewing machine of the above cliaructcr wherein the edge portions of fabric sections may be turned out of the plane of the fabric sections and trimmed, and afterward returned to the plane of the fabricsections in overlapped relation to each other so that the OVOI'lEIPPEt-l edge portions will be joined by stitching, the stitches of which extend through as overlapped portions.

provide a machine of the above character -wherein the overlapped portions of the stitching.

' trnnrning 1nechanism tlvelly, neat fabric'sections are'wholly Within the limits of the stitching mechanism so that the trimmed edges will be covered by the A still further object of the invention is to provide a sewing machine character wherein th trimmed edge portions are operated u on' after leaving the y devices which posiedge portions undersothat the edge portions turn one of the the oth'er Specification of Related Letters Patent. Reissued origami Io. 13min, but louemlper so, 191.7,le1lsl1io. torrelslueflsd Hovember 11, 1919.

' overlap; before they and State of character tions are joined and the edges thereof covwith the trimmed edges well as around the of the above 189,828, filed December 30, 1916. Application Serial No. 387,281.'

reach the stitching mechanlsm.

These and other objects will in part be obvious and will more fully disclose In the drawings, which of illustration one embodiment of the invention:

in part be hereinafter show by ways-c Figure -1 is a view in end elevation 'showing my improvements;

1g. 2 is a longitudinal sectional view through. the presser foot and the end of the work su port, also showing the needlebar and 'nee les;

. Fig. 3 is a sectional view of Fig, 2;

- Fig. 4 is a view, artly in top plan and partly in section, slowing the Work supon the line 3--3 port, the presser foot, the trimmin blades,- the needles, and the cross threa 4 laying devices; v Fig. 5 is a top plan view of the work su )port;

7 fig. dis a top plan view of the pr' esser fbot with the strip deflector in its inopera-g tive position; 4 i overlapped edge portions plan view of the saline;

Fig. 7 is a bottom Fig. 8 is a perspective View portion of the presser-foot, 1 r Fig. 9 is a'perspe'ctive view of the auxil iary portion ofthe presser foot; f

Fig. 10 is a diagrammatic view showin the parts of the presserfoot separated the relation of the fabric sections thereto-as presser foot;

Fig. 11 is a similar view,

but showingthe positions of the fabric sections after they are trimmed; v Fig. 12 is a similar view, but showing the their respective fabric sections and ()Vl' la ped;

of themain a part of a sewing machine embodying they enter the slot at the'front endof the -90 ig.-14 is a perspective view showing the 1 work support, the presser foot, the trimmin devices, the needles and the cross thread laying devices Fig; 15 is a perspective view showing, more or less diagrammatically, the needles and the fabric sections which 10.5 J are being oined;

and the manner of manipulating and joining the fabric sections;

1 Fig. 16 is a plan view o't'a portion of the fabric sections as shown in Fig. 15;

Fig. 17 is a view-,fsliowing, more or less diagrammatic-a1y; the overlapped fabric sections and the relation "of the stitching threads joining the same;

F ig. 18 is a transverse sectional .view through the work support and the presser foot at a point in front of the'trimining blades Fig. 19 is a similar transverse sectional View at a point inrear of the trimming.

blades; and

Fig. 20'is a similar transverse sectional view substantially at the stitching point.

The invention in its broadest aspects is directed to a sewing machine wherein the edge portions of the fabric sections are oined by a stitching mechanism having threeneedles, a cross thread laying 1neclianisin coi'ipe "ating therewith above the work support, and compleniental stitch forming mechanisn'i cooperating therewith beneath the work suppoit. The edge. portions of the fabric sections to be united are trimmed in.

advance'of the stitching mechanism by a mechanism which is so disposed that the trimmed edge portions of the fabric sections will overlap with the trimmed edges thereof terminating between and adjacent the outer needles of the stitching mechanism. The overlapped sections will, therefore, bc'penetrated bythecenter needle which will unite said overlapped sections. and the ti'iinniezl edges of the fabric sections will be covered by the concatenated threads of the stitching mechanism;

In the specific embodiment of the inven tion as sliow'n in the drawings. the trimniing devices which trim the edge portions.

of the fabric sections in advance of the needles are arranged horizontally and at. such a distance from the work support that;

' after the edges are trimmed and brought out o!" the plane ol the fabri Wis- Uri into overlapped relation, the arrangement of the overlapped edges relative to the stitches above referred to is ac(.:oniplished; that is to say, the edge portions of the fabric sec tions are overlapped with the trimmed edges thereot tern'iinating between and adjacent the outer edges. of the stile-h g mechanism. and thus the trinirnei'l edges arecon'ipletely covered by the coi'icatcnatml threads of the stitching mechanism and the overlapped portions are also joined b y the renter needle which passes through such portions. in order that thefabric sections ma i be.

brought into the range of the trimming dci'ices. the edge portions ihrrcol' are turned "en-l within range of the trinnn After hey are trimmed. ta into overlapped relation.

cated by the usual mechanism,

the edge portions bid of the plane of the fabricsections and returning the same into the same p'iaiic but in overlapped relation is brought about by the following; nicch-.

anisi'n. 'lhe work support is proi'iied with a rib located in front oi the presser foot and the triiinning' mechanism. and this rib serves as a means or aiding in turiiine the edge portions of the fabric sections out of the plane of the fabric si (-.ti ns. The pi'ess i' toot provided with a slot located in a line intermediate the outer needles of the stitching mechanism and extending to the trout end ot the foot to receive and guide the rip-turned edges to the trimmers. The

rib is cut an-av on one side thereof in rear of the trimming point sothat-the edge portion at that side of the rib may he turned 'down underneath the other edge portion.

The presser foot is provided with guide which positively turns down this edge per-- tion of the fabric section, while the other edge portion is positively held raised. There is a. clearance space in the foot over this guide for the other or upper edge portion.

The rear end of the slot in the foot positively turns down this iipper edge portion so that said edge portions areoverlapped bc-' tore the reach the stitching mechanism. The distance of the trimmer blades above the work support is so 'iro'portioned that the overlapped edges lie within the limits of the stitching mechanism. The stitching ,ineehaiiisin 'ireferably consists of three needles with which a single threaded loopeL.v

coi'iperatesbeneath the work support, and a cross thread laying mechanism cooperates with the needles above the work support, so I by a standard 3. The'standard alsocarries an overhanging arm. in which a needle bar 4 is mounted. The needle bar 4 is reciprovided with three needles,indicated at 5, f3

and 7 Cooperating)with the needlesbelow the work support-a looper 8 which is 1 located. in the work support,'and this looper is carried by a 1.00pm supporting-shaft Op oom-rating with the. needles above the work upport is a thread hook if) which is-adaptbe applied to sew.

and is pro-' ed to engage a .crossthread"extending through the Fixed guide 11 andlavsaid T ss :zio

timed inthe form of a loopfor certaiiihd the: 3363165 to enter so that the cross thread will connect all three of the needles. The

looper cooperating with all the needles beneath the work support causes the looper thread to concatenate with all three of the needle threads.

The material is fed along the'work 5111)- port by a feeding device 12 which is shown end of the presser foot. This slot is adapted to receive the u -turned edge portions of fabpic' sections. he throat plate 16 of. the ,inachine is formed with an inverted V- shaped rib 17 which extends into the slot 15. This rib 17 is cut away, as indicated at 18 in Fig. 5 of the drawings. Mounted on the Presser foot is a fixed trimming. blade 19. 006' rating with this fixed blade is, afmovab blade 20. This movable trim-' ming blade moves back and forth in a horizontal'plane and is adapted to trim the upturned edge rtions of the fabricsections which are fe along the slot 15.

The presser-foot is formed with a main section 21 and an auxiliary section The auxiliary section 22 is carried by a shank which slides'between lugs 24 and 25 carried 'by the main shank 26 supporting the main section 21 of the presscr foot. A spring 27 hearing against the upper end of this shank 23 yieldingly forces the auxiliary section downwardly, and the dow nvard movement is limited in-theusual manner. The throat'plate is forn'ied \Vljtll a depressed section 28 at one side of the. rib l7, and the auxiliary section 22 of the p'resser foot has a depending portion 30 which is located so as to hold the fabric on this depressed sedtion 28. The auxiliary section is provided with a projecting guide fil which extends into the slot l5 and close to the cutaway portion 18 of the rib. The. main section of the prcsstw foot is formed with a projecting guide 32 which forms the rear wall of the slot 15. p a The two fabric sections to be joined are indicated at F and F in the drawings. The edge. portions 7 and f, res 'iectively. 5 of these fabric sections are turned up, as shown in Figs. 14 and 15 of the drawings, and these up-turneld portions are guided into the slot in the presser foot. The rib 7 serves as a support for these l p-turned 1 '0 portions and directs the same. llltn the slot in the presser foot. The movable trimming blade 20 operating across the slot trims the up-turned portions of the fabric sections. 'Thethroat plate, as above noted, has a c /depressed section, and the surface. thereof meedle opening and leads from' the front stitching miechanism, and wherein a trim- 130 section F and facilitates the turning of the edge ortion f underneath the edge portion f. he guide 31, which is located ust 1n rear of the trimming blades, operates upon :the edge portion f after it is trimmed to crowd the same underneath the edge or- .tion f. There is a clearance space 9. via this guide 31 for the edge portion f, and the uide 32 whichis in reallt the rear end of the slot 15 serves to turn own the edge ortion f on top of the edge portionf. Thus the two edge portions are overlapped before they cross the needle opening 14 in the resser foot. i i T e needles are so disposed that the center needle 6 passes through the overlap d edge portions of the fabric sections, w ile the. needle 5 passes 'through the fabric section F. onlyand the needle 7 asses through the fabric section F only. n Fig. 17 of the drawings, the thread of the needle 5 is indicated at 5; the thread of the needle 6 is indicated at 6, and the thread of the needle 7 is indicated at 7. The cross thread laid by the hook 11 is indicated at 11, and the looper thread is indicated at 8. It will be seen from this figure that the needle threadv 6" passes through the overlapped fabric sections, while the needle threads 5. and 7? pass, respectively, through the fabric sections F and F only. The cross thread and the. looper thread not only join'the needle threads 5 and 7", but they cover the trimmed edges of the fabric sections which lie close to these threads. in other words, the overlapped sections lie. wholly within the limits of the stitching mechanism.

The trimming blades 19 and 20 are (lisposed a certain distance above the throatplate on which the fabric sections rest so H0 that the up-turn'ed trimmed edges, when brought back into the plane of the fabric sections, will lie close to theouter needles, respectively, .but within the paths of the needles.- Inasmuch' as the throat'plate on one side of the rib 17 is depressed below the surface on the other side of the'throat plat the rib, as clearly shown in Fig. 18 of .1 e drawings, is'atonc side of the center' Iiecdle. portions being properly centeied between the needles when brought back to the plane of the fabric sections, notwithstanding that I one of the 'up-turn'ed edges is of greater height than the other..' v From the above, it will be apparent. that I haveprovided'a sewing machine wherein the edge portions of the fabric sections-are joined and the edges thereof covered by. a

This insures the overlapped edge I Cit min mechanism operates to trim the edge POILIODS lHiKlVHHCG otthe needles and is so disposed that the trimmed edge portions of the fabric sections will overlap with the trimmed edges thereof terminatingbetween and adjacent the outer needles of the stitching mechanism and; tl'ieoverlapped sections will he penetrated by the center needle.

It willalso be apparent that the inven-v tion in its broadest aspects is not limited to horizontal trimmers-on which are turning devices for bringing the edge portions oft-he v fabric sect-ions into the range of the trimming mechanism, butothenw'z'iys of arranging the. mechanism fortrinnning the edge. portions may 'be devised, the essential fea ture being in thearrangement of the mechanism for the trimming of the-edge portionsso that said edge portions as they are presented to the stitching mechanism will overlap within the limits of the outer edges and be penetrated by the center needle. The presser foot 'pcr sc forms no part of the present invention. but is shown, described and claimed in my Patent" No.- 1,294,226, dated February 11, 1919: the throat plateper 3e likewiseforms no part 'of this invention, but is shown. described by Letters-Patent is and claimed in my November 5, 1918. j y

It is obvious that minor changes inthe v details of construction and the arrangementof parts iiiav be made without departing from the spiritvof this invent-imias'set forth in the appended claims.

Having thus described "the, invention. what I claim as new and cs'ir to ccurc Patent 1.283.639, dated 1. The combination off stitching met nism adapted to form coi'iging. ires, a work support having a rib; or guiding" and supporting lip-turned cdgc' poitions of fabric sections to be united. a i trimmin mechanism 1i devices. for trimming the up-turncd edge-'1 portions. means located between the trimming mechanism and the. stitching mechanism for positively turning" one of the trimmed edge portions underneath the'nthci" triinifned edge portion \vliergby said triinn'icd edge portions are ()Ytlltlil'ltitl before they reach the stitching mechanism,- said work support having a depressed section at one sidc of the rib and in front of the stitching mcbanism whereby one section of the fabric is 'guidc'd [underneath the prcsser toot in a, lower plaiie than the other to facilitate the. o ci'lappiug of the edge .portions of. thc fabric scctions. r

2 TThc combination 'of stitching mechanism. adapted to form covering stitchcs.. a. work support having an inverted V-shaped rib; for guiding ande support-ing lip-turned cdgeportio iso'f tabi'ic sections to be united. the trimming: m eclninisnr Including horiother edge portion.

"imag n for v directing the 'of the ,fabric/ sections ncluding horizontal trimming ,tions into overlapped relation so that said \\orl( vsupport, a: looper 'zontal trimming devices for trimming the lip-turned edge portions, means located be; tween the trimming .mechanism and the. stitching inechanisnrfor positively turning one of the edge. portions underneath the" other trimmed edge portion whereby said trimmed edgeportions are overlapped be fore they reach the stitching mechanism.

work support having an inverted V shapcd' rib for guiding and supporting upturned edge portions of fabric sections to .beunited.

the trimming mechanism including-brin- Zontal trinuiiing devices for trimming the lip-turned edge portions, means locatedbetween the trimming mechanism and the stitching mechanism for positively turning one of the edge portions underneath the other trimmed edge portion wlierel i said trinimed -cdge portions are overlapped be fore they 'each the stitching mechanism. said V-shaped rib being cut away to pe mit the'undernath edge portion to be turned down and said work support haviv a dcpressed section alongside of said llu on the cut-away side thereof to facilitate turning of the lower edge portion underneath the -l.-;The coinbination oi a work support,

stitching mechanisn'i including three necdles, a cross thread laying-device cooperav mg with .the needles above the Work. pport. and Ya ,looper coi'ipera ing with the n'eed'ies beneath the work support-,a trim i'iin'g mechanism including horizontal trimning devices located in 'front of the needles. lip-turned edges mechanism, and meanslocatedbetween the i uichanismfl-and the needles for tuningsth trimmed edge poroverlapped edge portions maybe joined b v the stitching I mechanism. said trimming mechanism being disposed relative to the 'work support sdthat the overlapped, edge portions lie entirely between the outer, nee-.

to the trimming dles whereby the trimmed edges willlbe cov-v cred b v the stitches.

5. The combination of a \"vorlcsupport..

stitching mechanism int-*ludingithree needles arranged in line. a cross thread laying ide vice cooperating with the needles above the -i.-otiperating with the needles below the work support, trimming mechanism including h rizontal trim-v ming blades located in front of the needles, means for directing the up-turned edges of fabric sections to the needles, a guide lo catcd bctwceuthc trmiming'niechanism and;

the needles for positively crowding? one (it needles below the the up-turned edges guiding means for turning the last-named edge portion down onto the first named edge portion whereby said edge portions are overlapped substantially in the plane of the fabric sections.

6. The combination of: work support, stitching mechanism including three needles arranged in line, a cross thread la ing device cooperating with the needles a ove the work support, a looper cooperating with the work support, trimming mechanism including horizontal trimming overlapped substantially sections in advance of blades located in for directing the sections to the ne front of the; needles, means gig-turned edges of fabric les, a guide located between the trimming mechanism and the neemechanism for trimming the edge portions of the fabri'c sections-being disposed and arranged so that the trimmed edge portions under the other, and

forming will overlap with the trimmed edges thereof terminating between and adjacent the outer needles of the stitching mechanism, whereby said overlapped edge portions will be stitched together by the center needle and both trimmed edges thereof will be covered by the concatenated threads of the stitching mechanism, and a feeding mechanism operating to feed'the trimmed edge portions past the stitching mechanism.

8. The combinatlon of a work support, stitching mechan sm mcludmg three needles arranged in a line at substantial right angles to the line of feed, asingle threaded loopercooperating with the needles beneath the work support, a cross thread mechanism for laying ingavith the needles above the work support, and a mechanism in advance of the stitching mechanism for trimming the edge portions of the fabric sections, said mechanism for trimming the edge port-ions of the fabric sections being disposed and arranged so that the trimmed edge-portions will overlap with the trimmed edges thereof termia single. cross thread cooperat natmg between and adjacent't'he outer needles of the stitching mechanism whereby said overlapped edge portions will stitched together by the center needle and both trimmed edges thereof will be covered by the concatenated threads of the stitching mechanism, and a feeding mechanism operating to feed the trimmed edge portions.-.

past the stitching mechanism.

In testimony whereof I affix my signature,

' JOSEPH BER-GER, Jn. 

